A spectrum is worth a thousand pictures. But all-sky spectra? Well, I bet they are worth many many thousands of pictures — introducing SDSS-V.
Galactic bars channel gas into the central regions of spiral galaxies to birth new stars. Are they also responsible for lighting up the black holes?
Image Credit & Copyright: Martin Pugh Astrophotography
Half of the total baryons in the late Universe seem to be missing. This paper set out to look for them in between the intertwined cosmic web. (Image: The Millennium Simulation)
Gravitational lensing “shines light” on dark matter and allows us to find them effectively. But baryons may also disguise as false dark matter signal.
(Image Credit: ESA/Hubble & NASA)
Of all things that flicker in the night sky, quasars are of them. Ramping up their typical variability by 400% and you get extreme variability quasars — let’s take a closer look.